winchell



(No Model.) l 2 Sheets-Sheet 1.

J. F. WINGHELL.

GRUSHING AND GRINDING MILL.

Patented Jan. 22, 1889.

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WITJVESSES N.' PEYERS. Pholo-Lnhognphcr. Washington. D. C.

(No Model.) 2 Sheets-Sheet 2.

J. P. WINGHELL.

GRUSHING AND @BINDING MILL.

No. 396,448. Patented Jan. 22, 1889.

WITJVESISES.

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UNITED STATES JAMES F. 'INOHELL, OF SPRINGFIELD,

OHIO, ASSIGNOR TO THE FOOS MANU- FACTURING COMPANY, OF SAME PLACE.

CRUSHING AND GRINDING IVIILL.

SPECIFICATION forming part of Letters Patent No. 396,448, dated January22, 1889.

Application tiled July 27, 1887. Serial No. 246,395. (No model.)

To all whom, t may concern.-

Be it known that I, JAMES F. XVINCHELL, a citizen of the United States,residing at Springfield, in the county of Clark and State of Ohio, haveinvented certain new and useful Improvements in Crushing and GrindingMills, of which the following is a specification, reference being hadtherein to the accompanying drawings.

This invention relates to improvements in crushing and grinding mills;and it consists, essentially, of a divided main shaft, or a main shaftand an auxiliary shaft, of grin ding mechanism, the rotating portionthereof being mounted upon one of said shafts, a feedingcrush er mountedupon the other of said shafts, a crushing-chamber in which it feeds andcrushes, and intermediate motion-conducting mechanism, which conductsmotion from one of said shafts to the other and causes one of them torotate at a different speed from that of the other.

The invention also consists in so constructing the motion-conductingmechanism that a change in the speed of the motion which it conductsfrom one of said shafts to the other may be made, if desired.

The invention further consists of certain details of construction andarrangement, which will hereinafter more fully appear.

In the accompanying drawings, on which like reference-letters indicatecorresponding parts, Figure 1 represents a vertical sectional view of myimproved mill frame and casing and the grinding mechanism, and anelevation of the divided shaft or the shafts, the feeding-Crusher, theshaft-adjusting mechanism, the driving-pulley, and a gear-wheel andpinion; Fig. a plan view of the mill with the upper portion of thecasing and the hopper removed 5 Fig. 3, a detailed sectional View of thestationary head which supports the stationary grinding-plates and formsa bearing for one end of one division of the main shaft or auxiliaryshaft on the line c of Fig. 5, Fig. 4, a horizontal sectional view ofthe same head on the line y y of Fig. 5; Fig. 5, an elevation of saidhead.

This mill is of the general character of that shown and described inLetters Patent granted to me May 1S, 1836, numbered 342,311, for

The letter A designates the general frame of the mill, which is mountedupon suitable sills, and consists, essentially, of a casing, B, for thegrinding mechanism, a feeding and crushing chamber, O, and a hopper, D,preferably made of cast-iron.

The letter E refers to the main shaft of the mill, which has bearings atF and G, and is divided so as to form a section or auxiliary shaft, H,so that in using the term auxiliary shaft hereinafter it will beunderstood that said shaft is either a section of the main shaft and inline with it or is a shaft so placed with respect to axis of the mainshaft as not to be properly called a section of the main shaft. Theauxiliary shaft has a suitable bearing at I and another bearing at .I ina box supported by two or three spider-arms, K, which extend across theeye L of the stationary head M. This head is composed of a disk ofcast-iron, which is bolted or otherwise secured to the casing B, as seenin Fig. 1, having bosses N projecting therefrom, which rest against thecasing, and bolts O, which pass through the casing and into the bossesand head. In Fig. 5 three, the preferred number of these bosses, areshown.

The spider-arms are preferably V-shaped in cross-section, as seen inFig. 3, for the purpose of preventing any material passing from thefeeding and crushing ch amber to the grinding mechanism from lodgingthereon, as the inclined position of the upper and lower faces of thespider-arms insures the natural dislodgment of such material. To thishead are secured in any approved manner the usual or any of the approvedgrinding-plates` P.

The letter Q designates the other grindinghead, which is rigidly mountedupon the main shaft E, and has its periphery fashioned after the mannerof the rim of a iiy or balance wheel, for the purpose of giving saidhead the quality of such a wheel. This saves the expense of a separatefly-wheel and rather tends to IOO strengthen the revolving' head. Tothis head are secured any number of any approved grimlingqplates, as bybolts or otherwise. The degree of reduction of the material bythegrinding mechanism is determined by the longitudinal adjustment of themain shaft, which is done by the adjusting mechanism shown at S, butwhich forms no part of the plosentinvention, being shown and describedin the patent already referred to. The lmain shaft also carries a(.lriving-pulley, T, and a pinion, lf. The function of the latter willpresently appear.

Secured upon the shaft Il is a feedingcrusher, V, having feeding andcrushin lugs IV, being of the character also shown and de.- scribed inmy said Letters Patent. This Yfeeding-Crusher may be secured by aset-screw, X, or otherwise. The form shown is the preferred form; butother forms may be used, and I desire, therefore, to be understood asnot limiting myself to any particular construction of this element ofthe machine. If this device merely performs the function of feeding thematerial without crushing it, it is still within what I contemplate,though I prefer that it shall perform both of these functions.

'The letter a designates a geai.\vl1eel mounted upon the auxiliary shaftII and intergearing with a pinion, b, carried by a motion-conductingshaft, c, having bearings in the projections d of the mi ll-frame (orotherwise supported) and carrying a gear-wheel, e. This latter gearmeshes with the pinion U. Thus it will be seen that when the main shaftis rotated by means of a belt over the pulle)7 T rotary motion will beimparted from it and the pinion U to the gear-wheel e, and by it, theshaft c, and the pinion Y) the motion is conducted to the gear a, andthence to the auxiliary shaft H and the feedingcrusher. As the pinion Uis smaller than the gearwheel e, and the pinion D also smaller than thegear-wheel a, it follows that the speed of rotation. of thefeeding-crusher is slower than that of the grinding mechanism. This istrue, as illustrated in Fig. 2; but it is obvious that various changesin the relative diameters of the several pinions and gears may be made,so as to rotate the feeding-Crusher and grindingmechanism at differentrelative speeds. It is preferred, however, to secure the gear-wheel aand pinion b upon the shafts H and c in a detachable manner, so as to interchange them from. shaft to shaft, which will cause a correspondingchange in speed of rotation of the feeding-crusher.

Of course, the gear-wheel a and pinion b may be substituted by otherinterchangeable gear-wheels and pinions of varying relative diameters,as set forth in an application filed by me July, 1887, Serial No.2+l,270, for improvements in crushing and grinding mills. That case,however, is designed to secure this variation in the speed of thefeeding and crushing mechanism with respect to the speed of the grindingmechanism broadly. The fact that a changein the speed of the rotation ofthe feeding-crusher may be made in the present case should properly bementioned, however.

The plate in the lower part of the casing is removable for the dischargeof the ground material by manipulating the screw in the lower endthereof, and which impinges the side of the adjacent portion of thecasing.

lVhen the material is fed into the hopper and down upon thefeeding-crusher, it conveys it toward and to the grindingplates throughthe eye Il in the stationary head M, at the same time reducing thematerial more or less by crushing it between the lugs IV and the wallsof the chamber C and the rib or bead therein. Thus the device V has thequality both of feeding and crushing. If, however, it were deprived ofone or the other of these functions, it would still come within thepurview of my invention when associated with the elements of thehereinafter-appearing claims. have these two qualities, and havetherefore constructed it with these capabilities and have so termed it.

Among the advantages of rotating the feeding-crusher at a lower speedthan the grindingmechanism may be mentioned the fact that it preventsclicking' the grinding mechanism by anoverfeed of the material to it,which is possible to occur when the material is more or less damp orwet, or when it is in a green state, should the feeding-Crusher run atthe same or nearly the same speed as the grinding mechanism. The feedingof the material by the feeding-erusher, when done lengthwise to it, isslower and slower as the speed of the rotation of the feeding-Crusher isreduced, and so this distinction will be made between the foregoingremarks as to the slower feed of the feeding-crusher when rotated atalower speed and the remarks in the application above alluded to, whichrefer to the increased feed ofthe material by lessening the speed of thefeeding-Crushers, the feed spoken of in that part of that case being thefeed which is crosswise to the axis of the feedin g-erusheis, while inthis case the feed spoken of is lengthwise with the feeding-crusher.

Aside from not confmin g myself to specific details of the construction,I desire to observe that the rotating head Q need notnecessarily beconstructed at its periphery after the manner of the fly or balancewheel, though such construction is preferred.

lVhile I have shown and described the motion-conducting mechanism asconsisting of a shaft and a gear-wheel and a pinion, meshing,respectively, with a pinion and a gearwheel carried by the main shaftand an auxn iliary shaft, it is obvious that the substitution of beltsand pulleys for these gear-wheels and pinions would be within myinvention,

I prefer, however, that it shouldV IOO IIO

igo

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, isi 1. In a crushing and grindingmill, the combination, with the main shaft and grinding mechanismcarried thereby, of an auxiliary shaft mounted opposite the center ofthe grinding mechanism independently of the main shaft, afeeding-Crusher mounted on the auxiliary shaft, a chamber in which thefeedingcrusher operates, and motion eonductin mechanism interposedbetween the main shaft and the feeding-crusher, and consisting of ashaft geared to the main and auxiliary shafts through interchangeablegearing', whereby the relative speed of the main and auxiliary shaftsmay be varied and motion conducted from one of them to the other.

2. In a crushing and grinding mill, the combination, with the mainframe, theA casing, the chamber, and the main and auxiliary shaftsmounted upon the frame substantially in line with each other7 of astationary grindinghead within the casing, a rotary grinding-headcarried by main shaft, and a feedingcrusher within said chamber andcarried by the auX- iliary shaft, a pinion on the main shaft, agearwheel on the auxiliary shaft, and motion-conducting mechanismtransmitting motion at diiferent speeds from one shaft to the other,consisting of a shaft mounted upon said frame, a gear-wheel carriedthereby and meshing with the said pinion, and a pinion carried therebyand meshing with the first-named gear-wheel.

3. In a crushing and grindin mill, the combination, with the main shaftand grinding mechanism, of an auxiliary shaft mounted substantially inline with the main shaft, a feeding crusher mounted thereon and arrangedto feed the material longitudinally to the grinding mechanism, a chamberin which the crusher operates, and a shaft geared to the main andauxiliary shafts and rotating the latter at a different speed from theformer.

4. In a crushing and grinding mill, the combination, with the main frameand casing, of an auxiliary shaft mounted at one end in the frame and atthe other within the eye of a grinding-head, and a grinding-head securedto the easing and having an eye therein, and spiders extending acrossthe eye and having the upper and lower faces thereof at an angle to ahorizontal plane.

In testimony whereof I afii x my signature in presence of two witnesses.

JAMES F. IVINCHELL.

Witnesses: r

'WILBER .CoLV1N, A. A. YEATMAN.

